#3559CC#3559CC

#3559CC is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.7% C 0.183 H 266.6°. Best body text is #FFFFFF at 6.08:1 contrast (WCAG AA passes).

Color values

HEX	#3559CC
RGB	rgb(53, 89, 204)
HSL	hsl(226, 60%, 50%)
HSV	hsv(226, 74%, 80%)
CMYK	cmyk(74%, 56.4%, 0%, 20%)
CIE-LAB	lab(41.63, 27.32, -63.37)
CIE-LCH	lch(41.63, 69.01, 293.32°)
OKLab	oklab(50.69% -0.011 -0.1827)
OKLCH	oklch(50.69% 0.183 266.6)
XYZ	xyz(15.9358, 12.2595, 58.6415)
Luminance	0.1226 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3559CC #CCA835

analogous

#35A5CC #3559CC #5C35CC

triadic

#3559CC #CC3559 #59CC35

tetradic

#3559CC #CC35A5 #CCA835 #35CC5C

square

#3559CC #CC35A5 #CCA835 #35CC5C

split-complementary

#3559CC #CC5C35 #A5CC35

monochromatic

#1B2E6B #27439C #3559CC #6681D8 #97A9E5

Accessibility & contrast

On white

6.08

#3559CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#3559CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3559CC

6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3559CC	#FFFFFF	#000000	##FFFFFF
##3559CC	1.00	6.08	3.45	6.08
#FFFFFF	6.08	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D0

Deuteranopia (green-blind)

#005BCA

Tritanopia (blue-blind)

#00758A

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3559cc;
/* rgb */ color: rgb(53, 89, 204);
/* oklch */ color: oklch(50.7% 0.183 266.6);

Tailwind

colors: {
  custom: {
    50: '#8187dc',
    500: '#3559cc',
    950: '#000000',
  },
}

SCSS

$custom: #3559cc;
$custom-light: #8187dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3559cc",
  "rgb": {
    "r": 53,
    "g": 89,
    "b": 204
  },
  "hsl": {
    "h": 225.695,
    "s": 59.684,
    "l": 50.392
  },
  "oklch": {
    "l": 0.5069,
    "c": 0.18308,
    "h": 266.6
  },
  "luminance": 0.12261
}

Semantic roles & 50–950 ramp

primary

#3559CC

secondary

#D0C08D

accent

#BD45E3

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3559CC

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →